Configuring and Recording Voice with Cisco and ASP.NET (VXML)

Introduction

This article explains how configure a Cisco device and record voice on an HTTP server.

Using the code

Shown here is a sample configuration for a Cisco device which is voice enabled on one port:

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call application voice vxml flash:1:/http_rec.vxml
!

voice-port 0/0
 supervisory disconnect dualtone mid-call
 supervisory answer dualtone
 pre-dial-delay 2
 no battery-reversal
 input gain 14
 output attenuation -6
 echo-cancel coverage 32
 timeouts interdigit 2
 timeouts call-disconnect 1
 timeouts wait-release 3
!
!
!
!
dial-peer cor custom
!
!
!
dial-peer voice 100 pots
 application vxml
 incoming called-number .
 direct-inward-dial
 port 0/0
!
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Now, create a VXML file for the Voice application (http_rec.vxml):

After that, you should create an ASP.NET project and add a record.aspx file to this project. I the code-behind, add this code in the Page_Load method:

Request.Files["myrec"].SaveAs(@"first.au");

Points of Interest

If you want to learn more about VXML, read: Cisco VoiceXML Programmer’s Guide.

History

• 21/05/2006: A simple voice recording on an HTTP server with a Cisco device.